ad blue MERCEDES-BENZ SL55AMG 2003 R230 Owner's Manual

96 Controls in detailSeatsSeat ventilation*
The switch is located on the door. The blue
indicator lamps on the switch show the
ventilation level selected:
1Seat ventilation switch
Make sure the ignition is switched on.All the lamps in the instrument cluster
light up.
Switching on the seat ventilation

Press switch1.
Three blue indicator lamps on the
switch light up.
Switching off the seat ventilation

Press switch1 repeatedly until all indi-
cator lamps go out.
Level 3
Three indicator lamps on
Level 2
Two indicator lamps on
Level 1
One indicator lamp on
Ventilation off
No indicator lamp on
iIn normal operation the seat ventilation
will switch off automatically after about
30 minutes.
!If one or all of the lamps blink on the
seat ventilation* switch, there is insuf-
ficient voltage since too many electri-
cal consumers are switched on. The
seat ventilation* switches off automat-
ically.
The seat ventilation* will switch back
on again automatically as soon as suffi-
cient voltage is available.

150 Controls in detailAutomatic climate controlAdjusting the temperature for center
and side air vents
When outside temperatures are low, you
can manually raise the air temperature for
the center and side air vents. The
controls3 are located between the center
air vents (
page 147).
Turning on warm air

Press the left button (red).
The indicator lamp on the button lights
up. Warm air will enter from the center
and side air vents.
Turning off warm air

Press the left button (red).
The indicator lamp on the button goes
out. The air from the outlets will return
to the temperature set in the system.Turning on cooler air

Press the right button (blue).
The indicator lamp on the button lights
up. Cooler air will enter from the center
and side air vents.
Turning off cooler air

Press the right button (blue).
The indicator lamp on the button goes
out. The air from the outlets will return
to the temperature set in the system.
Adjusting air volume
Use the air volume control10
(page 148) for both automatic and man-
ual air volume adjustment.
Adjusting manually

Press the control knob.
The
U
light on the control knob
goes out. You can now select one of
nine air volume settings.
Adjusting automatically

Press the control knob.
The
U
light on the control knob
comes on. The airflow is adjusted auto-
matically.